"...in Pakistan and Afghanistan, the Taliban have issued fatwas opposing vaccination as an American plot to sterilize Muslims. The Taliban have kidnapped, beaten, and assassinated vaccination officials, including assassinating the head of Pakistan's vaccination campaign in Bajaur Agency..."

"...leaders in northern Nigeria advised their followers not to have their children vaccinated with oral polio vaccine. The boycott caused cases of polio to arise not only in Nigeria but also in neighboring countries. The followers were also wary of other vaccinations, and Nigeria reported over 20,000 measles cases and nearly 600 deaths from measles from January through March 2005. In 2006 Nigeria accounted for over half of all new polio cases worldwide. Outbreaks continued thereafter; for example, at least 200 children died in a late-2007 measles outbreak in Borno State."

"In the U.S., all states except Mississippi and West Virgina allow parents to opt out of their children's otherwise-mandatory vaccinations for religious reasons.[ The American Medical Association opposes such exemptions, on the grounds that they endanger health not only for the unvaccinated individual but also for neighbors and the community at large."